42-383-34218

Final Completion

NUNN J. F. -A-

REAGAN County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)

Permits

1

Max Depth

8,300 ft

First Permit

1993-05-26

Latest Activity

1993-05-26

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1993-09-08

Shut-In

Plugged

2023-04-20

!

EWA / Production operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Production: DE3 OPERATING LLC (reported 2020-12)

!

EWA / Permit operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: COX, JOHN L.

Resolved via: schedulingPIONEER NATURAL RES. USA INC.

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-06

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (4) Elevation 2,662 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
CRETACEOUS400 ft+2,262 ft
UPPER SPRABERRY (Spraberry)6,605 ft-3,943 ft
LOWER SPRABERRY (Spraberry)7,204 ft-4,542 ft
DEAN 8,000 ft-5,338 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (3)

IntervalType
6,615–6,645 ftPerforated
7,220–7,502 ftPerforated
8,027–8,170 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"532 ft300 sx
4.5"8,250 ft1,700 sx

Permit History (1)

Applications (1)

#411992 A COX, JOHN L.
received 1993-05-21

Records & Logs

3 completion filings on record · 2 with log images at RRC.

W-2/G-1 1993-09-23 log on file
W-2/G-1 1993-09-23 log on file
W-2/G-1 1993-09-29
Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in REAGAN County.

Well Details

Well Number
23
Max Depth
8,300 ft
Drill Type
Vertical
County
REAGAN
District
7
Completed
1993-09-08

Operator

Location
Y SPRING
P-5 Status
Active (filed 2025-08-01)
Cum Oil (all leases)
1,771,882,421 bbl
Cum Gas (all leases)
1,763,727,021 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
15,403